Crossed Flags Performance LLC

Crossed Flags Performance LLC Custom Performance Automotive modifications, specializing in C1-C4 Corvettes, including the C4 ZR-1. OBDI tuning.

Full repair and maintenance service, including older generation GM performance vehicles. Please call to schedule service appointment (832) 748-1286

12/13/2022

Customers and Friends. I have formally retired and moved to Pagosa Springs Colorado. Thanks to all of you who trusted me with your cars. I wish all of you nothing but the best and many days out on the road putting a smile on your face as you put your right foot on the gas!!!

With the help of JS Fabrication, we designed, fabricated and installed a custom breather/catch can on the '96 Supercharg...
10/14/2021

With the help of JS Fabrication, we designed, fabricated and installed a custom breather/catch can on the '96 Supercharged LT-4. -8AN feeds to tank installed between PS Cooler and Fans. Motion Raceworks hardware on the composite valve covers.

Finished up the Vortech Supercharged 1996 LT-4. Basic scope:- Tick Performance MAGA2 cam- Oil Pump gear- AFR 195 heads-...
08/18/2021

Finished up the Vortech Supercharged 1996 LT-4. Basic scope:
- Tick Performance MAGA2 cam
- Oil Pump gear
- AFR 195 heads
- ARP Studs
- AC Delco water pump
- Manley 5/16" .120" wall rods (7.30")
- AFR guide plates
- Comp Cam 1.6 Rockers
- Lunati lifters
- LT-4 valve covers, relieved for rockers
- Carolina Clutch Dual Friction stage 2 setup with Billet Single Mass FW
- Snow water/methanol injection/custom port injection
- Optispark
- Taylor wires
- NGK 4177 plugs
- Walbro GSS352G3 fuel pump
- Steering Rack rebuilt
- Custom Street/Dyno tune 2 Bar Speed Density
- Lucas 42 lb/hr Injector cleaning/calibration
- Ho**er SuperComp Header refurb
- Moroso breather
- General engine bay repairs, belts, hoses and cleaning.

Mustang Dyno delivered 411 rwhp at 6,000 rpm and 394 rwtq at 5200 rpm.

Getting closer on this 1996 LT-4 build. Tons of upgrades.. Cam, AFR 195 heads, new Optispark, Methanol Injection, plug...
04/30/2021

Getting closer on this 1996 LT-4 build. Tons of upgrades.. Cam, AFR 195 heads, new Optispark, Methanol Injection, plugs, wires, dual friction clutch, billet flywheel, shim kit for trans, injectors, water pump, new tune and more and more...

Big project!

Beautiful 1933 Ford in with some fuel injector issues. 1988 L98 engine. On the way to full power restoration..
03/12/2021

Beautiful 1933 Ford in with some fuel injector issues. 1988 L98 engine. On the way to full power restoration..

01/24/2021

Honored to be trusted with your ZR-1 Jim! Welcome to the Crossed Flags Performance family!

Another C4 rescued (1994 LT-1)! Diagnosed and repaired "no crank"; installed new SAC City Optispark with Petris vented ...
12/10/2020

Another C4 rescued (1994 LT-1)! Diagnosed and repaired "no crank"; installed new SAC City Optispark with Petris vented cap & rotor, new AC-Delco 41-906 plugs gapped at .050, new plug wires, cleaned & serviced Throttle Body, repaired multiple vacuum leaks, repaired damaged rib on balancer. Cleaned & degreased front of engine and frame while Opti was out. Water pump had limited miles and was in good condition.

Replaced all 4 Bilstein shocks on a '91 ZR-1 a few months ago. The system persisted in kicking out code 22, indicating ...
12/05/2020

Replaced all 4 Bilstein shocks on a '91 ZR-1 a few months ago. The system persisted in kicking out code 22, indicating a "time out fault" on the right rear actuator. The spur gears were all pretty stiff when installed. Just finished removing right rear again. Verified proper seating depth of top cup (actuator plugs into it), applied penetrating oil while working the spur gear, removed one very small burr on the spur gear, lubricated with very small amount of grease and reinstalled. Cleared code 22 with Tech 1a. Test drive perfect. All 4 actuators working well. No fault codes.

Nice '94 LT-1 in for repairs. Infamous Optispark failure! DTC 16. Going back with SAC City unit and the Petris Vente...
12/03/2020

Nice '94 LT-1 in for repairs. Infamous Optispark failure! DTC 16. Going back with SAC City unit and the Petris Vented cap/rotor upgrade.

Wires, plugs as well. Found broken check valve on intake manifold so will replace that.

Car wouldn't crank. Chased wiring back from starter to ignition switch. Aftermarket (now out of business) security system was problem. Removed it and cleaned up the wiring rat nest.

Time to clean up front of the engine before reassembly!

Address

37007 Red Rock
Magnolia, TX
77355

Opening Hours

Monday 8am - 5pm
Tuesday 8am - 5pm
Wednesday 8am - 5pm
Thursday 8am - 5pm
Friday 8am - 5pm

Telephone

+18327481286

Website

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